Current extinction risk and historical patterns of speciation and extinction in relation to nest placement strategy

Eliza Grames

There is high variation in nest placement site across bird families.

Image credit: Jamie Hall

There is high variation in nest placement site across bird families.

Image credit: Joel Jorgensen

There is high variation in nest placement site across bird families.

Image credit: Mac Stone

There is high variation in nest placement site across bird families.

Image credit: Me

There is high variation in nest placement site across bird families.

Image credit: Sparky Stensaas

There is high variation in nest placement site across bird families.

Image credit: Australia Zoo

There are phylogenetic patterns in nest placement strategy.

Image credit: Fang et al. (2018)

There is a phylogenetic signal for IUCN extinction risk in birds.

Image credit: Kimberley Collins

What shared factors matter for extinction risk?

Intrinsic factors

External threats

Habitat degradation is the primary threat to bird species globally.

Image credit: Brianne Mantai

Habitat degradation is the primary threat to bird species globally.

Image credit: Todd Klassy

Habitat degradation is the primary threat to bird species globally.

Image credit: Google Earth

Focusing on the interaction of intrinsic and external factors could improve predictions of extinction risk.

Image credit: Evan Lipton

Nest placement strategy is likely a useful predictor of extinction risk.

RQ1: Does including nest placement strategy in models improve predictions of global extinction risk of bird species, as measured by IUCN status?

Methods

RQ2: Can historical speciation and extinction (net diversification) rates within clades be predicted by nest placement strategy?

Methods

RQ3: What is the signal of diversification following a shift in nest placement strategy? Does a shift lead to adaptive radiation as a new ecological niche opens up?

Methods

Project Significance and Broader Impacts

Questions?

Image credit: Lauren Dinan